Trademarks
Sun City, Sun International's resort in South Africa's North West province recognised the opportunity to promote the viewing from their location as the night sky's are exceptionally clear. This trademark was created exclusively for the promotion, a symbol of its appearance. Visible from Earth every 75-76 years Halley's Comet is the only short-period comet that is clearly visible to the naked eye from earth, and thus the only naked-eye comet that might appear twice in a human lifetime. Halley's returns to the inner solar system have been observed and recorded by astronomers since at least 240 BC.